Ushi no Oppai

Overview

Wild, and bound by nothing, the large-framed young man Taiji returns to his home town for the first time in 10 years, where the main industry is dairy farming. In the mountain forest that is his inheritance from his grandfather, Taiji - with a sidelong glance for the dairy farmers around him, who blithely proceed to industrialize the act of obtaining the breast milk of the creatures known as cows - settles into his own pace to begin the process of setting up his own farm.

Source: AniList